Proof step e-2fc15f707287930e

preserver_image affine, shift 0 → concludes about basis_map_A007318 of Triangle read by rows: T(n,k) is the number of k-matchings of the corona K'(n) of the complete graph K(n) and the complete graph K(1); in … JSON

Theorem

Affine, reversal and Möbius substitutions (elementary) polytool ?

Lean (RealRooted): Polynomial.Splits.comp_of_degree_le_one

Operation

Image under a real-rootedness preserver

{
  "index_shift": 0,
  "operation": "preserver_image",
  "operator": "{\"shape\":\"affine\",\"slope\":\"1\",\"intercept\":\"1\"}"
}

Premises

• Triangle read by rows: T(n,k) is the number of k-matchings of the corona K'(n) of the complete graph K(n) and the complete graph K(1); in o… (sequence)
  uses: Every row P_n, n >= 0, is zero or real-rooted with all roots in (-inf, 0]

Claims

• { "claim": "real_rooted", "from_index": 0, "region": { "upper": { "closed": true, "value": "-1" } } }
• { "claim": "interlacing", "from_index": 1, "kind": "weak", "orientation": "unordered" }

Verification and certificate

• polytool: replayed (the certificate replayed when the step was written)
• Lean: not attempted
• certificate: preserver_image, SHA-256 43e36051a60e38b1254756eca36f58e0e8e2d5596604cc47f4910d9b619b9c25, 17,068 bytes (3,861 compressed); download JSON

Cited by

• n-6bbd968fe5cbbe11 (one_signed_coefficients)
• n-6bbd968fe5cbbe11 (hadamard_kernel)
• n-6bbd968fe5cbbe11 (interlacing)
• n-6bbd968fe5cbbe11 (real_rooted)